Plaster board



Patented Mar. 19.730

AuNIT134:15fs'l,Ar-Es PATENT*'-orFIc o,4 warrior-DETROIT,- VMICHIGAN,.Assrcfnora BY MESNE lssrenminimis,y ro `marmi) srarns ensuit-company, or CHICAGO, ILLINOIS, a'z coRroIwrIoN v i a or nLINOIS i A e Thislinvention relates'to plaster boardsor similar parts wherein acore oflplasticorj other material such forinstance asl-cellular material is incorporated between facing sheets suchasv of paper, and has forits ob- A v ject to providea reinforcedboardof such aVV nature that the position ofthe reinforcefull advantage of 'suchreinforcement may be a support.

A further'object is to" provide for. the rein- 4 forcement of suchboards'in a most'advan-v ample,having reference to the accompanytageous manner, wherein' the reinforcement is close to one of the surfaces of theboard and may therefore operate to protect practi-l call lthe entire board beneath such reinforced suracef'` v The invention also contemplates the incorporation of a reinforcement in such aboard directly beneath the. outer surface thereof in s such mannerthattheexact or practically the exact disposition of Ysuch lreinforcement may '25 be readily detected, thereby .fenablin'g'nails assed throughthe' board in iZ or staples to be any desired relationship to the reinforcement. 0

' lng'r'neans for effecting a printed impression Still further, the invention aims'tovutilize lthe reinforcement in themanufacturing of.

gathe board to effect the virnp'res'singof lndicating marks upon the surface covering of the f board in such manner that'such marks will- Y be efectivein determining ythe disposition of the said `reinforcement beneath such surface covering, and still 'further objects subsidiary.

to'or resulting from the aforesaid objectsvor from'the construction oroperation Qf the invention as it may be'carried into effect, will become apparent as the said invention is here-` inafter further disclosed. Y In carrying the said invention I may incorporate in a plasterfcellular, fibrous or similar board, having 'covered surfaces such as of paper, or even Vof the same material as the core, a reinforcement in the form of `a wire fabric disposedimmediately beneath one of the surface coveringsfas distinguished from its being incorporated-substantially7 within the vcore of theboard andV 5o provide 1mpressions or markings lon such sur-` ing. the wire fabric andthe paper covering taken whennailingor` stapling boards tol into ,i effect,

f c rrasrnn BOARD-1,

o. inxlaessQl face covering indicatingthe` disposition of the said reinforcing wire fabric, and such im-VY pressioni or marking maybe effected `inthe recess `of manufacturing -the board by rollwith vwhich itis associated, together in such manner thatthe said wire fabric creates 4an j impression .on the paper corresponding to its disposition relative thereto, which impression may be reduced,` to actual markings-by 'means of an ink roller or platen operated lon the outer side of the paper covering.

All of which is more particularly described and-ascertained hereinafter, by way of exiner drawing, wherein* Y a y igure 1 is a diagrammatic illustration of f a machine arrangement adapted to produce a board having the characteristics of the present invention; i

Figure Zis a osg f l Y y `'I0 p fragmentary perspective view `showingthe lapplication of such aboard to a support, part of the outer covering of the I lboard being broken away toy illustrate the re" inforcei'nentr.V l .A K Y Y F igure is a fragmentary view of part of the arrangement shown in Figure 1, illustrat of the reinforcement on the outer covermg ofl the board; and f Figure 4 is a fragmentary elevation of such ya printed board withv part of the outerY cover-v ing brokenaway to illustrate theu reinforcement. I

` Similaricharacters of reference indicate.

vsimilar parts in the several figures of the.

'first' wifigurel 2, the board. in

l requirements, for instance, the core may beof cellular material fsuch as wood fibre, but" common use to which the inventionespecially lends, itself isthat typecommonly known as ,the principal form of board at present in itis proposed to utilizea reinforcingfffabric Y V4 larrangec'l substantially yupon one side of Y takenof vthe :reinforcement y K u sta-.pling 'the board so' that' theinails :may be AWithin the core. y i

.,-It fis desirable in 'applying 'a rei-nfoi'cedf n p'leted board as sho-wnin the board, so :that in .applying suchfabourd* -to a support 5, this-reinforcement maybe arranged :at .the outer :side which V'1s farthest lremoved-from the supporti'ra's 'indicated in vthe said Figure 2,!thus1enclosing practically: except thesurface 'covering 1 between the-reinforcing `fabric-and'the-s'upL the entire board porting,r means. In this case it"wi1l "be observed that an'entirely vditlferentsupport is given'to thel core of thefboard than isthe-ca'se where the reinforcement board'to a support .that y advantage should "be in' Vnailing or -so disposed to the `reinforce ment that they engage or coact :therewith in a manner enabling'the YreinforcementV to Qpreventthejnails or staplespassinggthrougrh or vintotheboard:

to an undue :extent vor :being p ul'ledth'e-i'e# lthrough due to strains which maybeiinposed -on the nails or staples after `Vthe .boards ihave been aliixed in-place. 'Such'strainsniaybcur asxa resulto-f v\v arp"I'1fg"-o thesuppoirting structure yeither due or other causes, and, asespeciallyiingt ecase lofiire.theabilitv of the-nails or staples'to reta-in their Yeli'e'ctive fhold `upon the board5 and maintain it in its protective relation to itslsupport-s is of extreme importance. I j

To facilitate such nailingr or'stap-lingin proper relation 'to vthe i-einliicemciit, I vpropose :to mark thc'sirlace coveringl with ini-` pressions 6 corresponding to theV 4formation and disposition of the reinforcing fabricgso th ata'workma-n may knowv just where ,to drive the' V-Ilails' or staples reinforcement in the .indicates in such manner `tha'tit `embraces part of thez p Wire fabric, itl'iis being easily `effected 'by points ofthe staplesf simply f driving the N `th-roufbrh the rboa-rd on opposite sidesof one of the impression lines aspfvvi'll lbe readily Seen.

, Figure 1 illustrates a's'imple" method fof jpr .ducing aboard ofthe type illustrated in Fig'- :ure 2, and involves :the utilizing of a Well known .-type' of machine for making plaster boa-rds, wherein .upper land lower conveyor belts 8 -and"9 areadaptedto rguide upper v:and

reinforcing :material `which acts las and against the upper" surface of the 'bon 11 as itjpasseslbetween=the said rollers 14 '15, so that athis "fabric lies lupon the. lovverl lribbon s it kpasses'between the belt .-clearlyfshown Ii-n "Fi sure of `fthe upper '-r :is substantially fof ythe board, Wh .wold'betmet in lorder to engage the h'DQQf required manner, rand va staple idriven through the :board to 'any' tendency fifli'n'ailsl .orstaples to sink 1 '1li-nto' `the same, -andgineets any of the require- 4lower-paperi-ibljaoifis :10 fand ,1-1 between which laster l2 is fed from fa-hopper 13 in such details telf v"this Vmachine' 1 are not thoughtito' require yfurther explanation.

The machine is vmodiiled, "however, `the addition @theretofo upper :and ilove/erro 14s 15 *between which atlie v lower istrip? oi paper lll passes before receivingj the plaster fLlQandbetvveen which a'fribloon of Wire lfabric 16,is alsotpassed,'lthe said Vfabric being pressed vlower `ribconveyors,` @and :the

e said gwire fabric as somewhat fre'silient :nature so that the presthev fforniand V"disposition of the said rein "-Inithe modification a A'reservoir 19 may ithen'produeelpririted inafrkingsfQO on the sur-- ller v Ellie- Will cause themeshes'fof fthe' abifieto make impressions in 'n fthe peper :IL-:which :impressions will ybe more fQrcin'gffabr-ic' for :the purposes :hereinbefore explained.

- l p l shown inFigure'S an linking" Vroller.lil-7 'supplied `with ink 18 p from beut'ilized to ink the sur-` fiface ofthe roller l5 which in. this ease ,will

facefofthe{board,serving1tlie same purpose as thereinforcing fabric-ony one lofthe sides of ment adjacent fone Aol the surface coverings than "in ljthe cen-ter'ofithe core,

@n.supporting the fabric in the f factnreas-'Willbequit .l 4Aff-board offthetype referred -to vembodye obvious.

ingthep'resentf'inve tion is very desirableffor ,hea-tondampness ch ments'calledjforgat zthe `.present time forffire .Here'iinI fand ,init-he claims, the .term sure-` reinforcelIl() Y coverings forms a posit-ive supportfor the yreinforcingfabric during .the manu facturing" ereasconsiderable -diiiicultyoalrd, duri-ng ysuch manuit vmay be; subjected. to; maytend to produce theboard favorablei the boardbe'neath the surface. coatingr there of inthe-manner described,V and the marking zreerredto, itl- 1s amuch simplerjmatter to manufact'ure' la board `With th L ;protection; lso that ,it recommends itself for use in .Walls and eeilingsoff apartmenthouses :andsimilar constructions, wherein Wlli f board 'reinforcement is-especiallydesirable.' ,150

face covering or facing material is intended to be lnterpreted in 1ts broadest sense as indicating the surface portion ofthe board even though it may, as va matterof fact, beA

said invention, and itis desired that the` specification and drawingjbe read asmerely illustrative and not in a limiting sense, except as necessitated bythe prior art.

What I` claim is 1; In a board having a core interposed between sheets of facing material, a reinforcing wire fabric interposed between one-of said sheets and said core.

2. In a board having a core interposed `between sheets of facing material, a reinforcing wire fabric interposed between one of said sheets and said core, and meanson thev A* outer surface of said sheet indicating the dis# position of said Wire fabric.

3. In a board having a core interposedbe'- tween sheets of facing material, a reinforcin wire fabric interposed between one of sai sheets and said core, and an impressed delineation lof said wire fabric on the sheet extending thereover whereby the disposition of i said wire fabric beneath said sheet yis indi` cated. v

4. 'In a board having a core, 'a reinforcing wire fabric in said core, a covering sheet over said core, the delineation of sa-idyfabricl being. y

indicated lon said sheet. l

5. A plaster board having a Wire fabricap- `plied tov and exposed at a surface of the c plastic material, anda coveringv sheet applied over said. fabric.

6. A plasterboard having a wire fabric embedded in and exposed at a surface of the plastic materiahand a covering sheet applied oversaid fabric. i 4

, In testimony whereof vl' affix my signature.'

' CURRY O. WALPER. 

